Technical Note:
1. The DUPHOS family of catalysts is highly efficient for the asymmetric hydrogenation of various subs tituted acetamidoacrylates and enol acetates yielding products of high enantiomeric excesses. E fficlent ligand for the asymmetric hydrogenation of tetrasubstituted enamides.
References:
1.J.Am.Chem. Soc. 1995. 117. 9375.
2. J. Am. Chem. SoC. 1996. 118. 5142 3. Angew. Chem. Int. Ed.. 1998. 37. 1931
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